Switch-and-lock movement.



No. 768,205. PATENTBD AUG. 23, 1904. L. H. THULLEN.

SWITCH AND LOCK MOVEMENT.

APPLICATION FILED DEC. 19, 1903. N0 MODEL. 2 SHEETS-SHEET 1.

No. 768,205- PATENTED AUG. 23, 1904.

-L. H. THULLBN. swmm AND LOOK MOVEMENT;

APPLICATION FILED Bil-10.19, 1903.

N0 MODEL. 2 sHnnws-snnnrr 2.

a. W M

UNITED STATES Patented August 23, 1904.

PATENT OFFIGE.

LOUIS H. THULLEN, OF EDGEWOOD,

PENNSYLVANIA, ASSIGNOR TO THE UNION SWITCH & SIGNAL 00., OF SWISSVALE, PENNSYLVANIA, A GOR- PORATION OF PEN NSYLVANIA.

SWITCH-'AND-LOCK MOVEMENT.

SPECIFICATION forming part of Letters P'atent No. 768,205, dated August 23, 1904.. Application filed Decembe 19 1903. Serial No 185,854. (No model.)

To all whom it may concern:

Be it known that I, LOUIS H. .THULLEN, a citizen of the United States, and a resident of Edgewood, in the county of Alleghenyand State of Pennsylvania, have invented certain new and useful Improvements in Switch-and- Look Movements, of which the following is a specification.

My invention relates to switch-and -lock movements, and particularly to that, class of switch-and-lock movements which are operated by a motor.

I will describe'a s'witch-and-lock movement embodying my invention and then point out the novel features thereof in claims.

.In the accompanying drawings, Figure 1 is a top plan view of a switch-andlock movement embodying my invention. Fig. 2 is a detail top plan view of a part of the movement shown in Fig. 1 and drawn to a larger scale. Fig. 3 is a side elevation of Fig. 2. Fig. 4 is an end elevation of Fig. 3. Fig. 5 is a detailed perspective view of a motion-plate embodied in my apparatus. Fig. 6 is ahorizontal sectional view taken on a line 6 6 of Fig. 3.

Similar letters of reference designatecorresponding parts in all ofthe figures.

Referring now to the drawings, A designates one of the two lines of rails of a railway,,and B one of the two usual switch rails or points which are generally provided where it is desired to direct traific'fro'm off and onto the line of rails A. As usual, the two switchrails B are provided with connectingand spac ing bars or rods 13 and B, to which the usual switch-rod O and locking-rod D are connected.

Adjacent the switch-rails is'provided the switch-andlock movement for moving or shifting the switch rails or points B from one position to another and for operating the usual appurtenances of the switch-rails for example, the detector-bar and the lock for the railsin each of their positions. As shown,

the movement comprises a motor and a mechanism which isoperated by the motor. The

motor is here shown as consisting of a cylinder I, 1n which a piston reclprocates. The

N. The piston in the cylinder I may be re-,

ciprocated therein by any desired form of fluidpressurefor example,compressed air and the supplyof the fluid-pressure may be controlled either through valves manually operated or'through valves automatically operated in a manner similar to that illustrated and described in United States Patent No. 4:7 9, 666, granted July 26, 1892, to J. G. L. Schreuder. The end of the piston-rod H is preferably screw-threaded and receives a yoke L, carried by a sleeve L, which is removably secured to the motion-plate F The advantage of this construction is that adjustment may be provided between the motion-plate and the piston.

The motion-plate, as here shown, comprises two plates F F which are suitably spaced apart and secured together. Bolts E and L may be provided for securing the plates together, and the desired spacing may be se: cured by means of the sleeves L and E The sleeve E is carried by a rod E, which is suitably connected with a detector bar, (not shown,) the function of which is well known in the art; Intermediate the plates F and F is a motion-bar or cam-plate Ft As shown, this motion-bar comprises parallel portions ff and an inclined portion f The motionplate is suitably supported on the base M by the bosses M and is adapted to-be reciprocated longitudinally of the rails A. It is guided in its longitudinal. motion by means of rollers O, which are carried by bolts P. The

.motionplate is retained on the bosses M of the base M by means of straps F", .which are held in position by the bolts P. i

K designates an indication-box, the function and operation of which is welt-known in the art. I j.

Gr designates a yoke pivoted on a bolt P and provided with rollers G" at'its ends, which rollers coact with the motion-bar F5 The lever G of the yoke is suitably connected with the switch-rod (I. It will be seen that a movement of the motion-plate in one direction will through the motion-bar rock the yoke on its pivot to move the switch-rails to one position and that a movement of the motion-plate in the opposite direction will through the mo tion-bar rock the yoke on its pivot to move the switch-rails to their second position.

The locking of the switch-rails in either of their two positions is attained by means of projections F F, carried by the motionplate, which projections are of different dimensions and enter correspondingly-formed recesses provided in the lock-rod D. The lock-rod D is guided in its movement beneath the motion-plate by bosses M extending upwardly from the base M.

The operation of the switch-and-lock movement, briefly stated, is as follows: Upon a movement of the piston in the eylinderfor example, in a direction to the right of Fig. l the motion-plate F will move with it. The initial movement of the motion-plate F will lift the detector-bar and withdraw the projection F out of its notch in the lock-rod D. During the initial movement of the motionplate the part f of the motion-bar will move between the rollers (:r' and will produce no motion of the yoke. As soon as the part f moves from between the rollers G the part f of the motion-bar will then engage the rollers G to rock the yoke on its pivot, and thus move or shift the switch-rails B. The last part of the movement of the motion-plate will bring the part f of the motion-bar between the rollers G, and thus prevent further movement of the yoke. The detector-bar, provided no train is above it, will have been lowered and the projection F will have entered its corresponding projection in the lock-rod D to lock the switch-rails in the position to which they have been moved during the last part of the movement of the motion-plate.

What I claim as my invention is- 1. In a switch-movement, the combination of a motion-plate, a motor for reciprocating the motion-plate, and a pivoted yoke connected with the switch-rails and rocked on its pivot by the motion-plate.

2,. In a switch-and-lock movement, the combination ot'amotion-platc, locking projections carried by the motion-plate, a motor for reciprocating the motion-plate, a pivoted yoke connected with the switch-rails and rocked on its pivot by the n'iotion-plate, and a lock-rod connected with the switch-rails and provided with recesses in which said locking projections enter.

3. In as\\"itch-andlock movement, the eonibination of a n'i'otion-plate, locking projections of different dimensions carried by the motionplate, a motor for reciprocating the motionplate, a pivoted yoke connected with the switch-rails and rocked on its pivot by the motion-plate, and a lock-rod connected with the switch-rails and provided with recesses o1 different dimensions in which said locking projections enter.

at. In a switch-movement, the combination of a motion-plate, a motion-bar carried by said motion-plate, a motor for reci n'ocating the motion-plate, and a pivoted yoke connected with the switch-rails and rocked on its pivot by the motion-bar.

5. In a switch-movement, the combination of a motion-plate, a motion-bar carried thereby and having two parallel portions and an intermediate inclined portion, a motor for reciprocating the motion-plate, and a pivoted yoke connected with the switch rails and rocked on its pivot by the motion-plate.

In testimony whereofl have signed my name to this specification in the presence of two subscribing witnesses.

LOUIS ll. Tl'l ULLIGN. Witnesses:

L. MCDANiEL, Gno. McCormick. 

